165151261510543 has 8 divisors (see below), whose sum is σ = 205902871493760. Its totient is φ = 128689294683480.

The previous prime is 165151261510457. The next prime is 165151261510553. The reversal of 165151261510543 is 345015162151561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165151261510543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165151261510493 and 165151261510502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165151261510553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072410788953 + ... + 1072410789106.

It is an arithmetic number, because the mean of its divisors is an integer number (25737858936720).

Almost surely, 2^{165151261510543} is an apocalyptic number.

165151261510543 is a deficient number, since it is larger than the sum of its proper divisors (40751609983217).

165151261510543 is a wasteful number, since it uses less digits than its factorization.

165151261510543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144821578077.

The product of its (nonzero) digits is 540000, while the sum is 46.

The spelling of 165151261510543 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, two hundred sixty-one million, five hundred ten thousand, five hundred forty-three".